    <!DOCTYPE html>
    <html lang="en">
    <head>
        <meta charset="UTF-8">
        <meta name="viewport" content="width=device-width, initial-scale=1.0">
        <title>登录页面的验证</title>
        <link href="https://cdn.bootcss.com/minireset.css/0.0.2/minireset.min.css" rel="stylesheet">
        <link rel="stylesheet" href="src/form.css">
    </head>
    <body>
    <div id="body">
        <div id="dv">
            <div id="container">
                <form action="#" method="post">
                    <input type="text" placeholder="请输入用户名" id="name">
                    <p id="sp1"></p>
                    <input type="password" placeholder="请输入密码" id="password">
                    <p id="sp2"></p>
                    <input type="button" value="登 录" id="btn">
                </form>
            </div>
        </div>
    </div>
    <!--<script src="https://cdn.bootcss.com/jquery/3.3.1/jquery.min.js"></script>-->
    <script src="https://cdn.bootcss.com/jquery/3.3.1/jquery.js"></script>
    <script src="src/form.js"></script>
    </body>
    </html>